Originally Posted by
garrettbuckeye
Freewheel... very nice. Thank You!
Would I benefit in replacing the 6 spd freewheel with a newer one? w/ shift ramps?
You are more likely to find a 7-speed freewheel with ramps and shaped teeth and they should be a direct replacement for your current 6-speed as the overall width is almost the same and they both were intended for 126 mm dropout spacing.
Shimano's 7-speed freewheels are index compatible so they have the improved tooth shape. Nashbar's housebrand freewheels (made by Sun Race) are also index compatible.